An object of mass 10 kg is launched from the ground at at an angle of
above the horizontal with a speed of 30 m/s. At some time after its launch, an explosion splits the projectile into two pieces. One piece of mass 4 kg is observed at (105 m, 43 m) at
s. Find the location of second piece at
s?
a) |
(10, 2) |
b) |
(48, 16) |
c) |
( |
d) |
Information insufficient |
An object of mass 10 kg is launched from the ground at at an angle of
above the horizontal with a speed of 30 m/s. At some time after its launch, an explosion splits the projectile into two pieces. One piece of mass 4 kg is observed at (105 m, 43 m) at
s. Find the location of second piece at
s?
a) |
(10, 2) |
b) |
(48, 16) |
c) |
( |
d) |
Information insufficient |
(d) As only the gravity force is acting on the system, the centre of mass of the system follows a parabolic path At Let coordinates of the second piece, i.e., 6 kg piece be Then Negative value of |
The effect of todays radioactive fall out will probably be more harmful to children of future generation than to children now living because |
|
1) |
Infants are more susceptible to radiations |
2) |
Susceptibility to radiation increase with age |
3) |
Mutated genes are frequently recessive |
4) |
Contamination of milk supply is not cummulative |
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